Project Background
- This project implements a minimal upgradeable proxy smart contract in Solidity (version 0.5.16) to overcome the limitation of immutability in blockchain-based applications.
- In Ethereum, once a contract is deployed, its code cannot be changed, which makes fixing bugs or adding new features difficult. To address this, the proxy pattern separates the contract into two parts: a proxy contract that handles user interactions and a logic contract that contains the actual business functionality.
- The proxy stores the address of the logic contract in a specific storage slot and forwards all incoming calls to it using delegatecall.
- This ensures that all state changes occur within the proxy while the logic contract remains replaceable.
- As a result, the system can be upgraded without changing the contract address, providing flexibility, maintainability, and long-term scalability for decentralized applications.
Website: z.cash
Executive Audit Summary
- According to the standard audit assessment, the Customer`s solidity smart contracts are “Secured”. Also, these contracts contain owner control, which does not make them fully decentralized.
- We used various tools like Slither, Solhint and Remix IDE. At the same time this finding is based on critical analysis of the manual audit.
- We found 0 critical, 0 high, 0 medium, 0 low, and 1 very low-level issue.
Audit Report in PDF
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